16722020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3853}}^1$

素因数の和:3900

約数の個数: 48

約数和(自身を含む): 41438208

約数和(自身を除く): 24716188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3853, 4340, 7706, 15412, 19265, 26971, 38530, 53942, 77060, 107884, 119443, 134855, 238886, 269710, 477772, 539420, 597215, 836101, 1194430, 1672202, 2388860, 3344404, 4180505, 8361010, 16722020]

約数ペア:

[(1, 16722020), (2, 8361010), (4, 4180505), (5, 3344404), (7, 2388860), (10, 1672202), (14, 1194430), (20, 836101), (28, 597215), (31, 539420), (35, 477772), (62, 269710), (70, 238886), (124, 134855), (140, 119443), (155, 107884), (217, 77060), (310, 53942), (434, 38530), (620, 26971), (868, 19265), (1085, 15412), (2170, 7706), (3853, 4340)]